# Claude Sonnet 4.5

api.venice.ai deprecated the model Claude Sonnet 4.5 without giving a shutdown date yet.

api.venice.ai has deprecated model Claude Sonnet 4.5 without a shutdown date. Calls specifying this model will fail once the retirement takes effect. This change impacts any integrations targeting the model Claude Sonnet 4.5 on api.venice.ai.

## What to use instead

Use Claude Sonnet 5.5 instead.

- API: api.venice.ai (api.venice.ai)
- Model: Claude Sonnet 4.5
- Kind: Model retirement
- Takes effect: no date given yet
- Calls after that day: fail
- Calls it hits: `model Claude Sonnet 4.5`
- Source: [Changelog](https://venice.ai/changelog)
- Verified: November 2, 2026, against api.venice.ai's own pages
- Page: https://www.okapi.bot/models/api-venice-ai/claude-sonnet-4.5/

## api.venice.ai's words

> Claude Sonnet 4.5→replaced by [Claude Sonnet 5.5](https://basehub.venice.ai/models/claude-sonnet-5-5)

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent